* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  list-style: none;

  &::-webkit-scrollbar {
    width: 12px;
  }

  &::-webkit-scrollbar-thumb {
    background-color: var(--scrollbar-thumb-color);
  }

  &::-webkit-scrollbar-track {
    background-color: #ffffff;
  }
}

html {
  &::selection {
    background-color: var(--btn-hover-color);
  }
}

img {
  user-select: none;
}

#app {
  display: flex;
  flex-direction: column;

  header {
    position: fixed;
    background-color: #fff;
    z-index: 100;
  }

  main {
    margin-top: 80px;
  }
}
